Single Core 12/20KV (Um=24KV) Armoured
Voltage: 12/20kV
Conductor: Copper or Aluminum
Operating Temperature: up to 90°C
Short Circuit Temperature: 250°C
Bending Radius: 12 x OD
Email: manager@hdcable.com.cn
Conductor: Plain annealed stranded compacted circular copper or aluminium conductor to IEC60228 class 2
Conductor Screen: Extruded semi-conductive compound
Insulation: XLPE (cross-linked polyethylene) rated at 90°C
Insulation Screen: Extruded semi-conductive compound
Metallic Screen: copper tape or a concentric layer of copper wires
Color for core identification: Red, Yellow ,Blue tape shall be applied between insulation screen and metallic screen ( The above identifying can be changed as user requirement)
Assembly : Three screened cores are laid up together ,if necessary filled with non-hygroscopic material compatible with insulation and covered with a layer of PVC sheath
Inner Sheath: Extruded layer of PVC ST2 or PE , LSZH
Armour : Double of aluminium tape or aluminium wire for single power cable ,Double of galvanized steel tape or galvanized steel wire for three core power cable ,
Outer Sheath: PVC type ST2 to IEC 60502 or PE ,LSZH
|
Specification |
Outer diameter |
Nominal thickness of insulation |
aluminium tape Layer×thickness |
Nominal sheath thickness |
Approx. Outer diameter of cable |
Approx. Weight of cable |
Ampacity of cable |
||||
|
Air |
Soil |
||||||||||
|
CU |
AL |
Cu |
Al |
Cu |
Al |
||||||
|
mm2 |
mm |
mm |
mm |
mm |
mm |
kg/km |
kg/km |
A |
A |
A |
A |
|
1×25 |
6.0 |
5.5 |
2×0.5 |
1.8 |
27.4 |
1109.1 |
956.7 |
170 |
130 |
160 |
125 |
|
1×35 |
7.0 |
5.5 |
2×0.5 |
1.9 |
28.5 |
1256.8 |
1044.5 |
205 |
160 |
190 |
150 |
|
1×50 |
8.4 |
5.5 |
2×0.5 |
1.9 |
30.0 |
1445.4 |
1148.8 |
245 |
190 |
230 |
175 |
|
1×70 |
10.0 |
5.5 |
2×0.5 |
2.0 |
31.7 |
1717.3 |
1295.9 |
310 |
240 |
280 |
215 |
|
1×95 |
11.5 |
5.5 |
2×0.5 |
2.0 |
33.3 |
2014.5 |
1437.0 |
380 |
285 |
335 |
260 |
|
1×120 |
13.0 |
5.5 |
2×0.5 |
2.1 |
34.9 |
2324.1 |
1593.7 |
440 |
340 |
385 |
295 |
|
1×150 |
14.5 |
5.5 |
2×0.5 |
2.1 |
36.5 |
2666.9 |
1749.2 |
500 |
385 |
430 |
335 |
|
1×185 |
16.2 |
5.5 |
2×0.5 |
2.2 |
39.6 |
3082.8 |
1946.6 |
570 |
445 |
490 |
380 |
|
1×240 |
18.4 |
5.5 |
2×0.5 |
2.3 |
42.0 |
3704.8 |
2225.3 |
675 |
525 |
565 |
440 |
|
1×300 |
20.5 |
5.5 |
2×0.5 |
2.4 |
44.4 |
4373.2 |
2516.0 |
780 |
610 |
640 |
500 |
|
1×400 |
23.5 |
5.5 |
2×0.5 |
2.5 |
47.7 |
5381.8 |
2959.6 |
910 |
715 |
735 |
575 |
|
1×500 |
26.5 |
5.5 |
2×0.5 |
2.6 |
51.0 |
6501.7 |
3424.0 |
1050 |
825 |
835 |
660 |
|
1×630 |
30.0 |
5.5 |
2×0.5 |
2.7 |
54.8 |
7851.3 |
3997.0 |
1230 |
970 |
960 |
760 |
|
Nominal section area (mm2) |
Copper conductor(Ω/km) |
Aluminum conductor(Ω/km) |
|
1.5 |
12.1 |
- |
|
2.5 |
7.41 |
12.1 |
|
4 |
4.61 |
7.41 |
|
6 |
3.08 |
4.61 |
|
10 |
1.83 |
3.08 |
|
16 |
1.15 |
1.91 |
|
25 |
0.727 |
1.20 |
|
35 |
0.524 |
0.868 |
|
50 |
0.387 |
0.641 |
|
70 |
0.268 |
0.443 |
|
95 |
0.193 |
0.320 |
|
120 |
0.153 |
0.253 |
|
150 |
0.124 |
0.206 |
|
185 |
0.0991 |
0.164 |
|
240 |
0.0754 |
0.125 |
|
300 |
0.0601 |
0.100 |
|
400 |
0.0470 |
0.0778 |
|
500 |
0.0366 |
0.0605 |
|
630 |
0.0283 |
0.0469 |
Max. Permissible short-circuit current for conductor (reference value)
|
Nominal section area (mm2) |
Maximum permissible short-circuit current for conductor(1s)（KA） |
|
|
Copper conductor |
Aluminum conductor |
|
|
1.5 |
0.12 |
0.13 |
|
2.5 |
0.32 |
0.22 |
|
4 |
0.50 |
0.34 |
|
6 |
0.76 |
0.51 |
|
10 |
1.51 |
0.99 |
|
16 |
2.39 |
1.56 |
|
25 |
3.69 |
2.42 |
|
35 |
5.15 |
3.37 |
|
50 |
7.31 |
4.79 |
|
70 |
10.2 |
6.68 |
|
95 |
13.8 |
9.03 |
|
120 |
17.4 |
11.4 |
|
150 |
21.7 |
14.2 |
|
185 |
26.7 |
17.5 |
|
240 |
34.6 |
22.6 |
|
300 |
43.1 |
28.2 |
|
400 |
57.4 |
37.65 |
|
500 |
71.7 |
47.0 |
|
630 |
88.8 |
58.0 |
